#!/usr/bin/python
import random

# stolen directly from xend/server/netif.py
def randomMAC():
    """Generate a random MAC address.

    Uses OUI (Organizationally Unique Identifier) 00-16-3E, allocated to
    Xensource, Inc. The OUI list is available at
    http://standards.ieee.org/regauth/oui/oui.txt.

    The remaining 3 fields are random, with the first bit of the first
    random field set 0.

    @return: MAC address string
    """
    mac = [ 0x00, 0x16, 0x3e,
            random.randint(0x00, 0x7f),
            random.randint(0x00, 0xff),
            random.randint(0x00, 0xff) ]
    return ':'.join(map(lambda x: "%02x" % x, mac))

# ... and stolen from xend/uuid.py
def randomUUID():
    """Generate a random UUID."""

    return [ random.randint(0, 255) for _ in range(0, 16) ]

def uuidToString(u):
    return "-".join(["%02x" * 4, "%02x" * 2, "%02x" * 2, "%02x" * 2,
                     "%02x" * 6]) % tuple(u)


print randomMAC();
print uuidToString(randomUUID());